Top definition
An idiot who believes that anything from when he was 12 years old was better than now.
Person #1: "So, what are your favorite movies?"

Person #2: "Anything from when I was 12 years old, because they are so much better than today's movies!"

Person #2: "man, you are such a nostalgiatard!"
by BH2004 June 02, 2012
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2
a phrase screamed by retarded 12 year old minecraft/undertale/anime/brony/modern cartoon fans in which they think that anything after 1999 sucks. to be fair, not all nostalgic people think anything after 1999 sucks anyway, just some...
Guy 1: I remember those Lunchables commercials from 1998!
Guy 2: Nostalgiatard!!!
Guy 1: Wait, what?
via giphy
by SouthParkGuy1999 March 07, 2017
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